Filament sample spool

I love filament samples, but I don't love throwing the bundle on the spool holder and hoping it won't get tangled or wonky otherwise. So I came up with this. Printed in two parts, both have threads so you can unscrew the spool in half, load it, and screw it back.

I made the threads in Fusion360 with the thread tool, which seems to have made quite a tight fit for the threads. Depending on the filament you use, the friction might be a bit too much but can be fixed with a bit of grease on the threads, or by scaling one of the parts up or down just a bit.

Please share your make, always nice to see.